Controlling mechanism



Dec. 7-, 1926.

C. W. WYMAN ONTROLLING v MECHANISM Original FilQd May 20, 1920 i atented Dec. 7, 1 926 rrsn ZJSJEAE sis CHAR-LES W. -WYIVIAN F. AOLAREIWONT NEWTLHAMBSHIRE; ncQ-SSEGN'OR- -TO-SULLIHAN MAGI-IINERYWCOMPANY A .GGREQRATZON.BF-JYIASSACHUSEHFTS.

CONTHQLIJENG"MECHANISM.

My invention-relates to controllingmecha- 1 nism.

* It has for its object to provide an imp-roved -control-ling mechanism, andone which; While not "necessarily limited thereto, is especially adaptedtothe control -'ofcombined "cooperatingmechanisnr adapted tobe operated in sequenoe. A further object of my invention isto provide-anfimproved controlling -meehainism *for combined clutch and brake mechanisms of" the type usedon mininganaehine I trucks, the 'SEtIIl6"ll10l1lClll1g an improved, simplified; andrugged mechanism adapted: to -oontrol-" the. brake jand clutch I I in the desired sequenceand also I adapted to -be readilyand conveniently oper- *ated by an operator. Theseandotheryadvantages of my improved construction will, -howvever;hereinafter more fully appear.

Wh'ile' myinvention may be embodied '.in Warious forms, I have shown herein for .pur-

-poses of illustration-one embodiment Which my invention may assnme iin; praetieeyf'the 1 same-being illustrated in the accompanying drawings as applied to a'mlnl ng .machine truck.

- with my improvement.

2 is a transverse sectional vieW'on line -22 OfFig'. 1. V

Fig. 3 is a detail sectional View on line 'of'Fig'. 1.

Fig. etis a detail sectional viewroniline 4% of Fig. 2.

T In this illustrative construction; Ihave shown a tru'ck 1, which be ofanystand- 'ard form, having its Wheels Q'adapted to be driven through a powerconnetion 3, herein in the form of a'ohain'and-sprooket drive, from a truck driving shaft 41 carried on the rear end of the-"truck and itself adapted to be driven from a; track supported mining machine (notshown) through agear a 1'0 tat-able by a rotating part on the/mining -1naehine, the connection between the' gear 5 and-the shaft 4 and thespe ed of rotation or the latter- 1 shaft being controlled" through a usual brake and clutch mechanism in turn controlled by improved controlling mechanisn'iherein'after described.

More particularly; it will be observed that herein the-gear 5 iscarried on an upright shaft- 6 Wl1lCl1 'in turn carries a *Worm" 7 lllQSlllIlg-Wlill a WOPDI gear 8 rotatable on -the transverse shaft 4, preferablyat a point betwe'en its ends. As shown; this-gear 8 is "fixed to ansleeve' 9- rotatzibleon the shaft 4', and this sleeve 9 is in turn fixedto a coaxial -sleeve 10 ofa "clutch m'ember 11" "of usual form disposed at oneend'of the" shaft, ahd herein having a: nsu'al clutch' -'l-i11i ng '12 therel ll1 0211Ti8d-by' and pressed into engagement therewith by an= inter eoaxia lly disposed expansible 5 clutch and brake 'member 13 which is in turngc onnected through toggles 1 k with a longitudinally movable shipping member 15 splined; as-at 163*to one end' of the shaft =4. As sho wn,- a"br a-ke lining. 17--is'a1s0' disposed coaxia-lly i v ithand'within 'the member 13 and adapted to be pressed against an innert stationary abutment -'or'eoaXia1-*-hrake :member 18, carried on the-frameyivhenthe member l3 is moved away from" the member 111 i: e; wheni themei'nber 'l5--is -1n0ved'--1onitiidinally to the right from the position 'S'1OWl1 in Fig. 2. "IIerein,"the member 'lfr is also= provided with thens'n'al 'l uggedcollar 19. adapted to be engaged by the forked ends o f i an up standing clutch shipping lever 20 to move the member 15 longitiidinally 'of the sh'aftin such a manner as alternatively t-oeonnect the' 5 clutch and release t-he brake, --'or disconnee't theclutch and apply the brake.

Referringmore "particularly to i the controlling mechanism for the memberi" 20, it Will be observed that i this member; is suitably pivotrllynnounted at a point between its ends on longitiidinally disposed pivot 21 on the frame; herein-*ontliat part-bf. the frame "carrying the stationary brake abut- 111811 518. 1kt its npperend, this member 20 is: also: provided with a pivoted sleeve '22 freely movable "between a djustablvwear absorbing steps '23 1 threaded on the'out'er end of a-threaded transversely disposed'pivoted operating member or rod 24 Whichis in turn p'ivotallymounted at its inner end on a 'lon- =gitndinally' disposedpin or extension 25 pro,- vided' on a can; or' eccentric26"rotatably mounted on" the frame. "This'member'flfi is herein formed on a longitiidiiially extending rock shaft 27 jonrnaled at 28 on the frame and having fixedthere'to, asby a key29, an upstanding controlling} than-die '30 movable in a I transverse plane and operable "from: the side of: the track. "A s shown; the shaft' 27 and its bearing 28* on the frame are carried on a} longi-tiidinai'ly 'ext'en'ding member 31 her 15 supported by the frame and having a laterally extending web and a depending portion 33 fixed to a casing 3i surrounding the clutch and brake mechanism. As shown, the web 32, also preferably carries a shield, cover member or seat 35, the latter herein being suitably pivotally connected to the web as by a pin 36 in such a manner that the member will normally cover the mechanism and form a satisfactory operators seat near a side platform 37, and yet at the same time be free to be swung laterally as indicated in Fig. 1, to expose the controlled parts whenever desired.

In the use of my improved construction, the clutch and brake may be alternatively operated by swinging the upstanding lever 30 about its pivot to oscillate the eccentric 26 and its pin and thereby move the memand its connected movable clutch member 13. For example, in the full line position shown in Fig. 2 wherein the pin is moved to the extreme right hand limit of its movement, the member 15 is pushed to the left and the member 13 thereby expand ed in such a manner as to cause it to press against the clutch lining 12 and compress the latter against the clutch member 11, thereby connecting the clutch. To disconnect the clutch without applying the brake, the member 30 is moved to the right hand dotted line posit-ion shown in Fig. 2 and the full line position shown in Fig. 1. By this movement, the eccentric 26 is so rotated to the left as to move the member 15 sulliciently out ard to make the member 13 disconnectthe clutch and yet not connect with the brake member 18. hen it is desired to apply the brake, however, the member 30 is then moved to the left hand dotted position shown in Fig. f2, tae eccentric 26 then being further rotated to the extreme left hand limit of its movement in such a manner as to draw the rod PA: further to the left and thereby move the member 15 sul'l icicntly far to cause the member 13 to press the brake lining 17 against the brake member 18.

Attention is directed to the fact that in the position of the parts shown in Fig. 2 the pivot pin is in substantial alinement with the rock shaft 27 and so that an extremely powerful toggle action has been obtained. It will also be noted that as the handle 30 is moved toward the left hand dotted position the truck drive is first interrupted, then there is a period of lost motion, and that as the brake is applied the parts are moving into a position to obtain a toggle action once more.

The mechanism shown permits an operator to move a simple controlling member conveniently, quickly and freely from the right hand full line or driving position shown in Fig. 2 to the left hand dotted line or braking position shown in that figure, or

mo es";

vice versa, without any necessary interruption of movement, the action being such that the truck may be quickly disconnected from its power and braked when necessary or as quickly released from its brake and connected to its driving mechanism. Through the location of the member 30 at one side of the truck, it will also be observed that the member 30 may be readily moved by an operator seated on the seat 35, the latter conveniently located above the control mechanism on the end of the shaft 1- and adjacent the platform 3'7. hen on this seat, it will also be noted that the operator is so located relative to the control member 30 that he is able to apply his maximum power to the latter and even also use his weight on the lever if necessary. Through the provision of the pivotal mounting for this seat, it will also be noted that whenever access is desired to the mechanism, the seat may be readily thrown out of operative position to permit such adjustment of the mechanism as may be desired.

While l have in this application specifically described one embodiment which my invention may assume in practice, it will be understood that this form of the same is for illustrative purposes and that the invention may be modified and embodied in various other forms without departing from the spirit or scope of the appended claims.

hat I claim as new and desire to secure from Letters Patent is:

1. in con'ibination, a plurality of control devices including a clutch device and a brake device, a member operative on movement in one direction to effect operation of one of said devices and on movement in the opposite direction to ell'cct operation of the other of said devices, and means for effect ingeach of said movements with a toggle action.

In combination, a plurality of control devices including a clutch device and a brake device, member operative on movement in one direction to effect ope 'ation of one of said devices and on movement in the opposite direction to effect operation of the other of said devices, and means including a manually operable handle movable in op posile directions to effect said different operations for c-llecting each of said movements with a toggle action.

3. In combination, a plurality of control devices including a clutch device and a brake device, and means for elfecting operation of each of said devices including a n'ianually operable controlling member, iiud toggle means actuated thereby for ellccting operation of each of said devices.

l. In con'ibiuation, a plurality of control devices including a clutch device and a bra :e device, and means for effecting operation of each of said devices including a manually operable controlling member, and

i .aeoaesv ..-nnitary means formeffectingr operation of devices; axmemben operativeuon movement each of saidZdeviceswith a toggle section.-

. .5;=In combination, a plurality of control devices-=including-i a clutclrdevice: and.- a

=-brake=device,- a member ;operative on. moiementin one direction-to effect operation of one lot-said devices and on anovementin the ing frictionally controlled, actuatingmeans .forasaid idevices including a ananually :operable controlling handle, and means fOla'lliiliting to a predetermined amount the friction in said friction device.

6. In combination, a plurality of control devices including a clutch device and a brake device, a member operative on movement in one direction to effect operation of one of said devices and on movement in the opposite direction to effect operation of the other of said devices, one of said devices being frictionally controlled, actuating means for said devices includingamanually operable controlling handle, and means for limiting to a predetermined amount the friction in said friction device including means adjustable to vary the amount of predetermined friction.

7. In combination, a plurality of control devices including a clutch device and a brake device, a member operative on movement in one direction to effect operation of one of said devices and on movement in the opposite direction to efiect operation of the other of said devices, one of said devices being frictionally controlled, actuating means for said devices including a manually operable coiitrolling handle, means for limiting to a predetermined amount the friction in said friction device during movement of said handle in one direction, and means whereby movement of the handle in the other direction releases said friction device and applies the other.

8. In combination, a plurality of control devices including a clutch device and a brake device, a member operative on movement in one direction to effect operation of one of said devices and on movement in the opposite direction to effect operation of the other of said devices, one of said devices being frictionally controlled, actuating means for said devices including a manually operable controlling handle, means for limiting to a predetermined amount the friction of said friction device during movement of said handle in one direction, and means whereby movement of the handle in the other direction releases said friction device and applies the other, said latter means having a neutral position between said operating positions to effect release of both of said devices.

9. In combination, in a truck driving and controlling mechanism, brake and clutch in loner direction to- :efiect operation ,Of'xOiie of .sa-idwdev -ioes andron':movementointhezop- ,posite direction. tofefiect operation :ofcthe mother of saidideviees, and a: toggle mecha ;nismoperative wto Yefiectsaid -operations,- a ..;manually anovable: controlling handle, and -.means if connecting said smemben :and handle permitting :=actuation of wsaid member through toggle.- lmechanisnr on I either meve-' mentthereof.

10.- In combination, a truck drivinguand cont-rollingc mechanisnrp :brake: :and clutch -'devices, a a pivotally :amounted J controlling member, an operating member operative in opposite positions to effect operation of said brake and clutch devices, a member pivotally connected to said controlling member at a point offset from the pivot of the latter and operatively connectible with said operating member through a lost motion connection whereby said controlling member may be moved to bring said point of pivotal connection into substantial Ialinement with said connecting member when at either side of the pivot of said controlling member.

11. In combination, brake and clutch devices, a pivoted controlling handle therefor, and operative connections including an operating member having an eccentrically disposed crank pm and a pivoted shipper lever actuated thereby, said operatingconnections being disposed between said controlling member and said devices for connecting one device and disconnecting the other during movement of said handle in one direction.

12. In combination, brake and clutch devices, a pivoted controlling handle therefor, and operative connections between said handle and said devices including an eccentric actuated by said handle and relatively adjust-able connected link and lever members actuated by said eccentric.

18. In combination, coaxial brake and clutch mechanisms including a longitudinally movable member, operatively connected actuating link and lever members forsaid member, and an actuating eccentric for said link and lever members.

14. In combination, brake and clutch devices, a pivotally mounted controlling member, an operating member operative in op posite positions to effect operation of said brake and clutch devices, and a toggie connection between said controlling member and said operating member.

15. In combination, brake and clutch devices, a pivotally mounted controlling member, an operating member operative in opposite positions to effect operation of said brake and clutch devices, and a combined lost motion and toggle connection between said controlling member and operating member.

16. In combination brake and clutch devices, a pivotally mounted controlling member, an operating member operative in opposite positions to effect operation of said brake and clutch devices, and amemberpiv ot-ally connected to said controlling member at a point off-set from the pivot oi the latter and operatively connectible with said operating member, said controlling member being movable to bring said pivots into substantial alinement with said connecting member.

17 In combination, brake and clutch devices, a pivotally mounted controlling memher, an operating member operative in opposite positions to effect operation of said brake and clutch devices, and a member pivotally connected to said controlling member at a point. off-set from the pivot of the latter and having a lost motion connection with said operating member, said controlling member being movable to bring said pivots into substantial alinement With said connecting member.

In testimony whereof I aflix my signatnre.

CHARLES V. .VYMAN. 

